Hello,
Im sorry to report that there are still choose signal problems. I think this is 100% reproducable on this savegame too!
Press the depot (the red house) and send all 6 trains out at once. They will start fill up the platforms until, eventually, a train wants to approach the same platform as another train and then deadlock.
Pakset: Swedish pakset
save: http://simutrans-germany.com/files/upload/Choose_signal_bug_3.sve (http://simutrans-germany.com/files/upload/Choose_signal_bug_3.sve)
Thank you for the report. I think that I have found and fixed this; I should be grateful if you could re-test.
I have restarted the swedish server game with 85bd973, and it seems to be OK.